I have a Redfield Revenge mounted to my 700 in .308 Win with the Dial and Shoot reticle/system in 3-9x40
I love it.
Here's the pros, built in bracketing range finder system. With 16" and 25" brackets gives you an accurate range estimate to get a "kill" shot easily out to 500 meters.
I've tested the bracket system on a 16" paper target at unknown distance, paced at 210 meters plus. I then used the scope to bracket the 16" painted square on my target, it read it at aprox 220 meters. When I used my friends laser range finder to my target it was indeed at 223 meters!
So the bracket system is very sharp.
The scope is simple, tough, holds up to .308 Win easily so far.
The "drop in dials" are a bit of a gimmick personally. The only way to really get one to work with your cartridge would be to tailor your hand loads until they were balisticaly equivalent to the MOA adjustments on the dial.
Example, the .30-06 dial is apparently almost an exact balistic match to the .308 Win 175gr GMM load. So I chose a load to that spec exactly. When I dialed it to the 220 meter mark I was shooting at least 8" low! When I applied balistics to find my come up at the 220 meter range for the cartridge in my head and set the dial back to my 100 meter zero, I counted aprox requirement of 12 clicks up. Which landed me well past the 220 mark on the dial. almost at 280
So again the balistic dials are hit and miss unless you will be using a hand tailor loaded cartridge with much testing to make its trajectory match the set balistic dial of your choice.
However if you know your trajectories and are good at doing the quick math coupled with the very accurate range finding system, I find it personally an amazing scope for the $200 bucks (well I ordered mine from e-bay straight from manufacturer at that price!) Plus Redfield is renowned for their hard as nails utility quality as well as unmatched warranty. Basically you can be the third owner of the scope, drop it on a rock with your rifle attached, break it and send it in for a new one.
If you did find a load that really did match one of the pre marked balistic dials, you would have a veritable plug and play deer slaying machine well out to 600 though! I prefer using the scope to estimate range and then applying the math in my head to get my quick come ups. Using that system I have hit a 10" plate at 315 meters easily. I have not taken it out further yet.
Highly recommend the scope personally. Bang for buck it's built like a tank, outstanding quality, great warranty and very precise built in range finding system.
Hope that helps.